🌿 feat: Multi-response Streaming (#3191)

* chore: comment back handlePlusCommand

* chore: ignore .git dir

* refactor: pass newConversation to `useSelectMention`

refactor: pass newConversation to Mention component

refactor: useChatFunctions for modular use of `ask` and `regenerate`

refactor: set latest message only for the first index in useChatFunctions

refactor: pass setLatestMessage to useChatFunctions

refactor: Pass setSubmission to useChatFunctions for submission handling

refactor: consolidate event handlers to separate hook from useSSE

WIP: additional response handlers

feat: responsive added convo, clears on new chat/navigating to chat, assistants excluded

feat: Add conversationByKeySelector to select any conversation by index

WIP: handle second submission with messages paired to root

* style: surface-primary-contrast

* refactor: remove unnecessary console.log statement in useChatFunctions

* refactor: Consolidate imports in ChatForm and Input hooks

* refactor: compositional usage of useSSE for multiple streams

* WIP: set latest 'multi' message

* WIP: first pass, added response streaming

* pass: performant multi-message stream

* fix: styling and message render

* second pass: modular, performant multi-stream

* fix: align parentMessageId of multiMessage

* refactor: move resetting latestMultiMessage

* chore: update footer text in Chat component

* fix: stop button styling

* fix: handle abortMessage request for multi-response

* clear messages but bug with latest message reset present

* fix: add delay for additional message generation

* fix: access LAST_CONVO_SETUP by index

* style: add div to prevent layout shift before hover buttons render

* chore: Update Message component styling for card messages

* chore: move hook use order

* fix: abort middleware using unsent field from req.body

* feat: support multi-response stream from initial message

* refactor: buildTree function to improve readability and remove unused code

* feat: add logger for frontend dev

* refactor: use depth to track if message is really last in its branch

* fix(buildTree): default export

* fix: share parent message Id and avoid duplication error for multi-response streams

* fix: prevent addedConvo reset to response convo

* feat: allow setting multi message as latest message to control which to respond to

* chore: wrap setSiblingIdxRev with useCallback

* chore: styling and allow editing messages

* style: styling fixes

* feat: Add "AddMultiConvo" component to Chat Header

* feat: prevent clearing added convos on endpoint, preset, mention, or modelSpec switch

* fix: message styling fixes, mainly related to code blocks

* fix: stop button visibility logic

* fix: Handle edge case in abortMiddleware for non-existant `abortControllers`

* refactor: optimize/memoize icons

* chore(GoogleClient): change info to debug logs

* style: active message styling

* style: prevent layout shift due to placeholder row

* chore: remove unused code

* fix: Update BaseClient to handle optional request body properties

* fix(ci): `onStart` now accepts 2 args, the 2nd being responseMessageId

* chore: bump data-provider

client/src/common/types.ts

@@ -1,5 +1,5 @@
 import React from 'react';
-import { FileSources, SystemRoles } from 'librechat-data-provider';
+import { FileSources } from 'librechat-data-provider';
 import type * as InputNumberPrimitive from 'rc-input-number';
 import type { ColumnDef } from '@tanstack/react-table';
 import type { SetterOrUpdater } from 'recoil';
@@ -11,8 +11,10 @@ import type {
   TPlugin,
   TMessage,
   Assistant,
+  TResPlugin,
   TLoginUser,
   AuthTypeEnum,
+  TModelsConfig,
   TConversation,
   TStartupConfig,
   EModelEndpoint,
@@ -229,6 +231,8 @@ export type TGenButtonProps = {
 
 export type TAskProps = {
   text: string;
+  overrideConvoId?: string;
+  overrideUserMessageId?: string;
   parentMessageId?: string | null;
   conversationId?: string | null;
   messageId?: string | null;
@@ -241,6 +245,7 @@ export type TOptions = {
   isRegenerate?: boolean;
   isContinued?: boolean;
   isEdited?: boolean;
+  overrideMessages?: TMessage[];
 };
 
 export type TAskFunction = (props: TAskProps, options?: TOptions) => void;
@@ -409,6 +414,29 @@ export type TLoginLayoutContext = {
   headerText: string;
   setHeaderText: React.Dispatch<React.SetStateAction<string>>;
 };
+
+export type NewConversationParams = {
+  template?: Partial<TConversation>;
+  preset?: Partial<TPreset>;
+  modelsData?: TModelsConfig;
+  buildDefault?: boolean;
+  keepLatestMessage?: boolean;
+  keepAddedConvos?: boolean;
+};
+
+export type ConvoGenerator = (params: NewConversationParams) => void | TConversation;
+
+export type TResData = {
+  plugin?: TResPlugin;
+  final?: boolean;
+  initial?: boolean;
+  previousMessages?: TMessage[];
+  requestMessage: TMessage;
+  responseMessage: TMessage;
+  conversation: TConversation;
+  conversationId?: string;
+  runMessages?: TMessage[];
+};
 export type TVectorStore = {
   _id: string;
   object: 'vector_store';